"Many mothers deliver at home in sub-Saharan Africa and it's very difficult for them to get to a hospital or clinic which may be miles away in that time period.

VOA: special.2010.05.24

Clearly, important information is to be conveyed to students from people who settle in the fields for a long period of time.

显然，对某个领域,进行长时间研究的学者,会将重要的信息,传达给学生。

麻省理工公开课 - 媒体、教育、市场课程节选

By the time Bush asked me to be his WHCF in early 2006, I had already long experience working for the president.

当布什让我做办公室主任时,也就是2006年初，我已经有很长的时间,和他一起工作了。

普林斯顿公开课 - 国际座谈会课程节选

Republicans and Democrats expressed identical concerns that by engaging in negotiations, Iran may be playing for time in an effort to move ahead with weapons-related enrichment.

VOA: standard.2009.10.28

And five weeks less one day later I decided you know what this might actually be for me and I switched from pass-fail to letter graded status at that point in time.

而第五周的最后一天,我从上及格-不及格制的课程转为上数字学分制的课程,你们可能知道这对我来说意味着什么。

哈佛公开课 - 计算机科学课程节选

Terribly dynamic and largely a very young group of players who are going to be competing in the Olympics most of them for the first time,"

VOA: standard.2010.01.12

This says, if you want to be in the air for a long time, so you may think that 90 degrees is the best angle.

也就是说,如果你想在空中停留更久,你也许会认为 90°是最佳选择

耶鲁公开课 - 基础物理课程节选

"A common threat is if you leave we're going to report you to immigration and you'll be arrested, you'll be kept in prison for a long time."

VOA: standard.2010.05.24

Idealism is a position that's got a very long history in philosophy and for many classes would be worth taking a fair bit of time to consider more carefully.

唯心主义这个观点,在哲学史上占据了很长一段时间,并且值得我们花几节课,时间用心解读这个观点

耶鲁公开课 - 死亡课程节选

Austan Goolsbee spoke on Fox News Sunday: "It is going to be a rough patch not just in the immediate term, but for a little bit of time ".

VOA: standard.2009.06.07

And I say something about Citizen Kane but go beyond it, so I thought this would be a good time in your life for you to see it or see it again.

我不仅要说《公民凯恩》,还要说别的，我认为这会是你们人生中的美好时光,你们去看这个电影或者再一次看。

麻省理工公开课 - 电影哲学课程节选

The issue is far from being settled. The United States has called for Israel to freeze settlement construction, but in response Israel insisted the freeze would be time-limited and exclude settlements currently under construction.

VOA: standard.2009.09.13

Now I would like to read to you from the footnote to Howl, Allen Ginsberg's famous poem, that for many people embodied at the time what it meant to be engaged in this new literary project.

现在我再给你们读一段《嚎叫》的脚注，这是艾伦金斯堡的著名诗歌，对于很多当时的人来说,参与这项新文学事业意义深远。

耶鲁公开课 - 1945年后的美国小说课程节选

Under such a program, young drivers are prohibited from nighttime driving, are limited to the number of passengers they can have in their cars at one time and will be ineligible for a full driver's license until they're 18 years old.

VOA: standard.2010.06.24

In the time it takes for one cell division to occur, it could be that this cell entraps a different chemical composition of the cytoplasm then this entraps, and that's a well known concept.

当一个细胞分裂发生期间,很可能这个细胞截留了一种不同的,细胞质化学组分,这种非对称分裂是一个广为人知的概念

耶鲁公开课 - 生物医学工程探索课程节选

Yes and no. It was fascinating to be as Wordsworth says, "Bliss was it in that dawn to be alive" -to be around in those days, but at the same time I think it's rather advantageous for us to be still "in theory."

可以说会，也可以说不会,正如华兹华斯所说，“能活在那黎明时光是何等幸福“,虽然过去对人有很大吸引力，但同时我们还是,只在理论层面研究比较好“

耶鲁公开课 - 文学理论导论课程节选

By "Present," We mean-- we will pick some part of the universe we want to study and we will ask, "What information do I need to know for that system at the initial time, like, right now, in order to be able to predict the future?"

我们所说的"现在",意思是,我们会选取客观世界某一部分来进行研究,然后我们就会问,我们需要什么信息去了解,初始时刻的系统,比如现在,进而能使我们能够预测未来呢

耶鲁公开课 - 基础物理课程节选